What is the atomicity of an element? Give an example of a diatomic molecule.

Type: MCQ • Marks: 1

A. Total weight of a molecule; Water

B. Total number of protons; Helium

C. Molecular mass; Carbon dioxide

D. Total number of atoms constituting a molecule; Oxygen (O₂)

Explanation

Atomicity is the count of atoms per molecule; diatomic molecules like O₂ have atomicity 2.

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Class 9th Science (MCQ)

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